Probably the most vulnerable place of the outer walls of the house is near the window walls, slopes of windows and doors when installing new windows and doors.
The slate is considered durable roofing material, but over time, under the influence of climatic conditions, it spoils (cracks appear, dust settles and dirt is stuffed).
Ceiling tiles are glued only on a smooth surface. They will not be able to hide large defects on the ceiling, but fairly small cracks and roughness will not be…